Howdy ,, I have an 68 El cam,,12 bolt posi rear end and have an right rear axel seal leakin,,I talked with mechanic today and he said that they do leak! Has anyone had similar problems with them? I asked him if I could eliminate them and go back to a C-clip (stock) set up and he advised me that it couldnt be done without ruining the housing! Im a bit confused to say the least on what I should do now ,,,,I really like the car and would appreciate any suggestions! Thanks alot Loner.....